/* CSSVariantEngine v3.0 — zg-SuperLeague.cq.cn */
/* Palette: tropical-gradient | Radius: mosaic-curved | Shadow: multi-layer glow */
/* Spacing: airy | Transition: spring-smooth */
/* Section layouts: {"news":"list-view","features":"centered","hero":"left-aligned","testimonials":"grid-3","partners":"centered","faq":"single-column","stats":"grid-4","cta":"split"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #5b21b6;
    --color-accent: #f59e0b;
    --color-surface: #f0f9ff;
    --color-text: #1e293b;
    --rgb-primary: 124,58,237;
    --rgb-accent: 245,158,11;
    --radius-sm: 4px;
    --radius-md: 20px;
    --radius-lg: 36px;
    --radius-xl: 48px;
    --shadow-sm: 0 1px 3px rgba(var(--rgb-primary), 0.1), 0 2px 6px rgba(15,23,42,0.06);
    --shadow-md: 0 4px 12px rgba(var(--rgb-primary), 0.12), 0 10px 24px rgba(15,23,42,0.08);
    --shadow-lg: 0 8px 24px rgba(var(--rgb-primary), 0.18), 0 18px 48px rgba(15,23,42,0.12), 0 32px 64px rgba(var(--rgb-primary), 0.08);
    --space-section: 4.2rem;
    --space-card: 1.6rem;
    --space-gap: 1.75rem;
    --transition: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    --heading-weight: 600;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height); 
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 55%, #fef3c7 100%);
    caret-color: var(--color-primary);
}
h1, h2, h3, h4 { 
    font-weight: var(--heading-weight); 
    text-shadow: 0 1px 2px rgba(var(--rgb-primary), 0.08);
}
section, .section { 
    padding-top: var(--space-section); 
    padding-bottom: var(--space-section); 
}
.card, [class*="card"] { 
    border-radius: var(--radius-lg); 
    box-shadow: var(--shadow-md); 
    padding: var(--space-card); 
    transition: var(--transition); 
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition); 
    background: linear-gradient(90deg, var(--color-primary) 0%, #06b6d4 100%);
    color: white;
    border: 2px solid transparent;
    border-image: linear-gradient(90deg, var(--color-primary), var(--color-accent)) 1;
}
a:not([class]) { 
    color: var(--color-primary); 
    transition: var(--transition); 
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
}

/* ========== Section Layout Variants ========== */

/* news: list-view */
/* 列表模式 (图左文右) */
                .news-grid { display: flex; flex-direction: column; gap: var(--space-gap); }
                .news-grid .card { display: grid; grid-template-columns: 280px 1fr; }

/* features: centered */
/* 居中大卡片 */
                .feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid .card { background: radial-gradient(circle at top left, rgba(var(--rgb-primary), 0.1) 0%, transparent 60%), linear-gradient(145deg, #ffffff 0%, #f8fafc 100%); }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }
.cta-inner .card { background: linear-gradient(135deg, var(--color-primary) 0%, #06b6d4 50%, var(--color-accent) 100%); color: white; }

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { 
    transform: translateY(-8px) scale(1.02); 
    box-shadow: 0 0 0 10px rgba(var(--rgb-primary), 0.05), var(--shadow-lg); 
}
.card { 
    border-left: 4px solid transparent; 
    border-image: linear-gradient(to bottom, var(--color-primary), var(--color-accent)) 1; 
}
header, .header, .navbar { 
    background: linear-gradient(180deg, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.7) 100%); 
    backdrop-filter: blur(12px); 
}

/* Responsive */
@media (max-width: 1024px) {
    .news-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .feature-list { grid-template-columns: repeat(2, 1fr) !important; }
    .partner-grid { grid-template-columns: repeat(3, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .hero-inner { grid-template-columns: 1fr !important; }
}
@media (max-width: 640px) {
    :root { --space-section: 2rem; --space-card: 1rem; --space-gap: 0.75rem; }
    .news-grid { grid-template-columns: 1fr !important; }
    .feature-list { grid-template-columns: 1fr !important; }
    .faq-list { grid-template-columns: 1fr !important; }
    .testimonial-list { column-count: 1 !important; }
    .partner-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .cta-inner { grid-template-columns: 1fr !important; }
}